1340412205 has 16 divisors (see below), whose sum is σ = 1761264000. Its totient is φ = 971210560.

The previous prime is 1340412169. The next prime is 1340412253. The reversal of 1340412205 is 5022140431.

It is not a de Polignac number, because 1340412205 - 2¹⁷ = 1340281133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30505 + ... + 60094.

It is an arithmetic number, because the mean of its divisors is an integer number (110079000).

Almost surely, 2^1340412205 is an apocalyptic number.

It is an amenable number.

1340412205 is a deficient number, since it is larger than the sum of its proper divisors (420851795).

1340412205 is a wasteful number, since it uses less digits than its factorization.

1340412205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90884.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1340412205 is about 36611.6402937645. The cubic root of 1340412205 is about 1102.5868059300.

Adding to 1340412205 its reverse (5022140431), we get a palindrome (6362552636).

The spelling of 1340412205 in words is "one billion, three hundred forty million, four hundred twelve thousand, two hundred five".